參數(shù)資料
型號(hào): PIC16LC782T-I/SS
廠商: Microchip Technology
文件頁(yè)數(shù): 98/186頁(yè)
文件大?。?/td> 0K
描述: IC MCU OTP 2KX14 A/D D/A 20SSOP
標(biāo)準(zhǔn)包裝: 1,600
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 13
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: OTP
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b; D/A 1x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
包裝: 帶卷 (TR)
其它名稱: PIC16LC782TI/SS
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2001 Microchip Technology Inc.
Preliminary
DS41171A-page 17
PIC16C781/782
2.3
STATUS Register
The STATUS register, shown in Register 2-1, contains
the arithmetic status of the ALU, the RESET status and
the bank select bits for data memory.
The STATUS register can be the destination for any
instruction, as with any other register. If the STATUS
register is the destination for an instruction that affects
the Z, DC, or C bits, the write to these three bits is dis-
abled. These bits are set or cleared according to the
device logic. The TO and PD bits are not writable.
Therefore, the result of an instruction with the STATUS
register as the destination may be different than
intended.
For example, CLRF STATUS clears the upper three bits
and sets the Z bit. This leaves the STATUS register as
000u u1uu
(where u = unchanged).
It is recommended, therefore, that only BCF, BSF,
SWAPF
and MOVWF instructions are used to alter the
STATUS register, since these instructions do not affect
the Z, C, or DC bits from the STATUS register. For other
instructions not affecting any status bits, see the
"Instruction Set Summary."
REGISTER 2-1:
STATUS REGISTER (STATUS: 03h, 83h, 103h, 183h)
Note:
The C and DC bits operate as a borrow
and digit borrow bit, respectively, in sub-
traction. See the SUBLW and SUBWF
instructions for examples.
R/W-0
R-1
R/W-x
IRP
RP1
RP0
TO
PD
ZDC
C
bit7
bit0
bit 7
IRP: Register Bank Select bit (used for indirect addressing)
1
= Bank 2, 3 (100h - 1FFh)
0
= Bank 0, 1 (00h - FFh)
bit 6-5
RP<1:0>: Register Bank Select bits (used for direct addressing)
11
= Bank 3 (180h - 1FFh)
10
= Bank 2 (100h - 17Fh)
01
= Bank 1 (80h - FFh)
00
= Bank 0 (00h - 7Fh)
Each bank is 128 bytes
bit 4
TO: Time-out bit
1
= After power-up, CLRWDT instruction, or SLEEP instruction
0 = A WDT time-out occurred
bit 3
PD: Power-down bit
1
= After power-up or by the CLRWDT instruction
0
= By execution of the SLEEP instruction
bit 2
Z: Zero bit
1
= The result of an arithmetic or logic operation is zero
0
= The result of an arithmetic or logic operation is not zero
bit 1
DC: Digit carry/borrow bit (ADDWF, ADDLW,SUBLW,SUBWF instructions) (for borrow, the polarity
is reversed)
1
= A carry-out from the 4th low order bit of the result occurred
0
= No carry-out from the 4th low order bit of the result
bit 0
C: Carry/borrow bit (ADDWF, ADDLW, SUBLW, SUBWF instructions)
1
= A carry-out from the Most Significant bit of the result occurred
0
= No carry-out from the Most Significant bit of the result occurred
Note:
For borrow, the polarity is reversed. A subtraction is executed by adding the two’s
complement of the second operand. For rotate (RRF, RLF) instructions, this bit is
loaded with either the high or low order bit of the source register.
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
- n = Value at POR
’1’ = Bit is set
’0’ = Bit is cleared
x = Bit is unknown
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